Regulatory Capital (Tables)

3 Months Ended

Mar. 31, 2016

Banking and Thrift [Abstract]

Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations

Actual capital amounts and ratios for the Company and its bank subsidiary, as of March 31, 2016 and December 31, 2015 are presented in the following tables:

	Actual				Adequately Capitalized  Basel III Phase-In Schedule				Adequately Capitalized Basel III Fully Phased-In				Well Capitalized (1)
	Amount		Ratio		Amount		Ratio		Amount		Ratio		Amount		Ratio
March 31, 2016
Total risk-based capital:
Consolidated	$	930,048	15.0	%	$	533,419	8.6	%	$	649,379	10.5	%	$	618,456	10.0	%
FIB	876,265		14.2		531,493		8.6		647,035		10.5		616,224		10.0
Tier 1 risk-based capital:
Consolidated	848,709		13.7		409,727		6.6		525,688		8.5		494,765		8.0
FIB	799,201		13.0		408,248		6.6		523,790		8.5		492,979		8.0
Common equity tier 1 risk-based capital:
Consolidated	768,709		12.4		316,959		5.1		432,919		7.0		401,997		6.5
FIB	799,201		13.0		315,815		5.1		431,357		7.0		400,546		6.5
Leverage capital ratio:
Consolidated	848,709		10.1		337,137		4.0		337,137		4.0		421,421		5.0
FIB	799,201		9.5		336,258		4.0		336,258		4.0		420,322		5.0

	Actual				Adequately Capitalized  Basel III Phase-In Schedule				Adequately Capitalized Basel III Fully Phased-In				Well Capitalized (1)
	Amount		Ratio		Amount		Ratio		Amount		Ratio		Amount		Ratio
December 31, 2015
Total risk-based capital:
Consolidated	$	946,156	15.4	%	$	492,692	8.0	%	$	646,658	10.5	%	$	615,865	10.0	%
FIB	882,504		14.4		490,866		8.0		644,262		10.5		613,582		10.0
Tier 1 risk-based capital:
Consolidated	861,339		14.0		369,519		6.0		523,485		8.5		$	492,692	8.0
FIB	805,805		13.1		368,149		6.0		521,545		8.5		490,866		8.0
Common equity tier 1 risk-based capital:
Consolidated	781,339		12.7		277,139		4.5		431,105		7.0		$	400,312	6.5
FIB	805,805		13.1		276,112		4.5		429,508		7.0		398,829		6.5
Leverage capital ratio:
Consolidated	861,339		10.1		340,480		4.0		340,480		4.0		$	425,600	5.0
FIB	805,805		9.5		339,316		4.0		339,316		4.0		424,145		5.0

(1) The ratios for the well capitalized requirement are only applicable to FIB. However, the Company manages its capital position as if the requirement applies to the consolidated entity and has presented the ratios as if they also applied on a consolidated basis.